F5 BIG-IP 12.1.0/12.1.1/12.1.2/13.0.0 TMM Request input validation

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
6.3	$0-$5k	0.00

A vulnerability was found in F5 BIG-IP 12.1.0/12.1.1/12.1.2/13.0.0 (Firewall Software). It has been declared as problematic. This vulnerability affects an unknown functionality of the component TMM. The manipulation as part of a Request leads to a input validation vulnerability. The CWE definition for the vulnerability is CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. As an impact it is known to affect availability. CVE summarizes:

In F5 BIG-IP LTM, AAM, AFM, Analytics, APM, ASM, DNS, GTM, Link Controller, PEM and WebSafe software version 13.0.0 and 12.1.0 - 12.1.2, malicious requests made to virtual servers with an HTTP profile can cause the TMM to restart. The issue is exposed with BIG-IP APM profiles, regardless of settings. The issue is also exposed with the non-default "normalize URI" configuration options used in iRules and/or BIG-IP LTM policies.

The bug was discovered 12/21/2017. The weakness was released 12/21/2017 (Website). The advisory is available at support.f5.com. This vulnerability was named CVE-2017-6138 since 02/21/2017. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. The technical details are unknown and an exploit is not available.

The vulnerability scanner Nessus provides a plugin with the ID 118604 (F5 Networks BIG-IP : TMM vulnerability (K34514540)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family F5 Networks Local Security Checks and running in the context l.

Proper firewalling of is able to address this issue. A possible mitigation has been published before and not just after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (118604). Entries connected to this vulnerability are available at 110990, 110989, 110988 and 110984.

Productinfo

Type

Firewall Software

Vendor

Name

BIG-IP

Version

License

commercial

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.3

VulDB Base Score: 5.3
VulDB Temp Score: 5.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
unlock	unlock	unlock	unlock	unlock	unlock
unlock	unlock	unlock	unlock	unlock	unlock
unlock	unlock	unlock	unlock	unlock	unlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	unlock	unlock	unlock	unlock
Today	unlock	unlock	unlock	unlock

Nessus ID: 118604
Nessus Name: F5 Networks BIG-IP : TMM vulnerability (K34514540)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Firewall
Status: 🔍

0-Day Time: 🔍

Timelineinfo

02/21/2017 🔍
12/20/2017 +302 days 🔍
12/21/2017 +1 days 🔍
12/21/2017 +0 days 🔍
12/21/2017 +0 days 🔍
12/22/2017 +1 days 🔍
11/02/2018 +315 days 🔍
01/18/2023 +1538 days 🔍

Sourcesinfo

Vendor: f5.com

Advisory: K34514540
Status: Not defined
Confirmation: 🔍

CVE: CVE-2017-6138 (🔍)
SecurityTracker: 1040051

See also: 🔍

Entryinfo

Created: 12/22/2017 08:21
Updated: 01/18/2023 17:57
Changes: 12/22/2017 08:21 (62), 12/28/2019 10:56 (7), 01/27/2021 18:17 (3), 01/18/2023 17:57 (3)
Complete: 🔍